KR970016723A - Liquid Crystal Display Device Having Thin Film Transistor for Switching Element - Google Patents

Liquid Crystal Display Device Having Thin Film Transistor for Switching Element Download PDF

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Publication number
KR970016723A
KR970016723A KR1019960041879A KR19960041879A KR970016723A KR 970016723 A KR970016723 A KR 970016723A KR 1019960041879 A KR1019960041879 A KR 1019960041879A KR 19960041879 A KR19960041879 A KR 19960041879A KR 970016723 A KR970016723 A KR 970016723A
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KR
South Korea
Prior art keywords
liquid crystal
display device
crystal display
electrode
voltage
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KR1019960041879A
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Korean (ko)
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KR100239013B1 (en
Inventor
마꼬도 와따나베
오사무 수께가와
고지 나까시마
Original Assignee
가네꼬 히사시
닛본덴기 가부시끼가이샤
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Publication of KR970016723A publication Critical patent/KR970016723A/en
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Publication of KR100239013B1 publication Critical patent/KR100239013B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

액티브 매트릭스 액정 디스플레이 디바이스는 화소 전극에 대해 스위칭 소자로서 다수의 박막 트랜지스터를 갖는 기판과 대향한 기판 상에 배치된 공통 전극에 고주파 AC 전압으로 변조된 전압을 공급한다. 공통 전극에 인가된 변조 전압은 장기간 남아 있는 진상을 완화하여 디스플레이 된 영상을 품질을 향상한다.An active matrix liquid crystal display device supplies a voltage modulated with a high frequency AC voltage to a common electrode disposed on a substrate facing a substrate having a plurality of thin film transistors as a switching element for the pixel electrode. The modulation voltage applied to the common electrode alleviates the long-term remaining phase and improves the quality of the displayed image.

Description

스위칭 소자용 박막 트랜지스터를 갖는 액정 디스플레이 디바이스Liquid Crystal Display Device Having Thin Film Transistor for Switching Element

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 8도는 본 발명의 제 1실시예에 따른 액정 디스플레이 디바이스의 모식적인 단면도.8 is a schematic cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.

Claims (6)

매트릭스 형태의 화소 전극, 상기 각 화소 전극에 대한 스위칭 소자로서의 다수의 박막 트랜지스터를 갖는 트랜지스터 장착 기판, 상기 트랜지스터 장착 기판에 대향하여 배치되고 대향 공통 전극을 갖는 대향 기판, 상기 기판들 사이에 밀봉된 액정 물질, 상기 화소 전극과 상기 공통 전극 사이에 전압을 인가하는 구동회로를 포함하는 액정 디스플레이 디바이스에 있어서, 고주파수 전압 신호를 상기 공통 전극에 인가하는 수단을 포함하는 것을 특징으로 하는 액정 디스플레이 디바이스.A matrix electrode having a matrix electrode, a transistor mounting substrate having a plurality of thin film transistors as switching elements for each pixel electrode, an opposite substrate disposed opposite the transistor mounting substrate and having an opposite common electrode, and a liquid crystal sealed between the substrates A liquid crystal display device comprising a material and a driving circuit for applying a voltage between the pixel electrode and the common electrode, the liquid crystal display device comprising means for applying a high frequency voltage signal to the common electrode. 제 1항에 있어서, 상기 고주파 전압 신호는 DC 전압을 소정의 주파수를 갖는 AC 전압 신호로 변조하여 발생되는 전압 신호를 포함하는 것을 특징으로 하는 액정 디스플레이 디바이스.The liquid crystal display device according to claim 1, wherein the high frequency voltage signal comprises a voltage signal generated by modulating a DC voltage into an AC voltage signal having a predetermined frequency. 제 2항에 있어서, 상기 DC 전압은 레벨을, 중간 톤을 디스플레이 할 때의 화소 전극의 전위의 대략 중간 레벨로 설정하는 것을 특징으로 하는 액정 디스플레이 디바이스.The liquid crystal display device according to claim 2, wherein the DC voltage sets the level to approximately an intermediate level of the potential of the pixel electrode when displaying the intermediate tone. 제 1항 또는 2항에 있어서, 상기 고주파 전압 신호는 마이크로파 영역의 주파수를 갖는 전압 신호를 포함하고 있는 것을 특징으로 하는 액정 디스플레이 디바이스.The liquid crystal display device according to claim 1 or 2, wherein the high frequency voltage signal includes a voltage signal having a frequency in a microwave region. 제 1항에 있어서, 상기 액정 물질은 고주파에 대해 응답성이 낮은 물질을 포함하고 있는 것을 특징으로 하는 액정 디스플레이 디바이스.The liquid crystal display device of claim 1, wherein the liquid crystal material comprises a material having low responsiveness to high frequency. 매트릭스 형태의 화소 전극, 상기 각 화소 전극에 대한 스위칭 소자로서의 다수의 박막 트랜지스터를 갖는 트랜지스터 장착 기판, 상기 트랜지스터 장착 기판에 대향하여 배치되고 대향 공통 전극을 갖는 대향 기판, 상기 기판들 사이에 밀봉된 액정 물질, 상기 화소 전극과 상기 공통 전극 사이에 전압을 인가하는 구동회로를 포함하는 액정 디스플레이 디바이스에 있어서, 상기 대향 전극에 약 1시간 주기의 시간으로 점진적으로 변화하는 AC 전압을 인가하는 수단을 포함하는 것을 특징으로 하는 액정 디스플레이 디바이스.A matrix electrode having a matrix electrode, a transistor mounting substrate having a plurality of thin film transistors as switching elements for each pixel electrode, an opposite substrate disposed opposite the transistor mounting substrate and having an opposite common electrode, and a liquid crystal sealed between the substrates A liquid crystal display device comprising a material and a driving circuit for applying a voltage between the pixel electrode and the common electrode, comprising: means for applying an AC voltage that gradually changes over time of about one hour to the counter electrode; A liquid crystal display device, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960041879A 1995-09-28 1996-09-24 Liquid crystal display device with thin-film transistor for switching element KR100239013B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7274845A JPH0996794A (en) 1995-09-28 1995-09-28 Liquid crystal display device
JP95-274845 1995-09-28

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KR970016723A true KR970016723A (en) 1997-04-28
KR100239013B1 KR100239013B1 (en) 2000-01-15

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CN1190693C (en) * 1999-01-22 2005-02-23 株式会社日立制作所 Liquid crystal display device
WO2001016928A1 (en) * 1999-09-01 2001-03-08 Displaytech, Inc. Reduction of effects caused by imbalanced driving of liquid crystal cells
US6507330B1 (en) 1999-09-01 2003-01-14 Displaytech, Inc. DC-balanced and non-DC-balanced drive schemes for liquid crystal devices
WO2001084226A1 (en) * 2000-04-28 2001-11-08 Sharp Kabushiki Kaisha Display unit, drive method for display unit, electronic apparatus mounting display unit thereon
KR100513655B1 (en) * 2001-08-29 2005-09-09 비오이 하이디스 테크놀로지 주식회사 Liquid crystal display
KR100769184B1 (en) * 2001-12-29 2007-10-23 엘지.필립스 엘시디 주식회사 Method for operating liquid crystal display device
TW588320B (en) * 2003-03-07 2004-05-21 Hannstar Display Corp Liquid crystal display
KR101102222B1 (en) * 2005-02-04 2012-01-05 삼성전자주식회사 Method for Preparing an Organic Thin Film Transistor by using Electric Field Treatment
US8144115B2 (en) 2006-03-17 2012-03-27 Konicek Jeffrey C Flat panel display screen operable for touch position determination system and methods
EP3133590A1 (en) * 2006-04-19 2017-02-22 Ignis Innovation Inc. Stable driving scheme for active matrix displays
US7859526B2 (en) * 2006-05-01 2010-12-28 Konicek Jeffrey C Active matrix emissive display and optical scanner system, methods and applications
TWI342537B (en) * 2006-12-11 2011-05-21 Chimei Innolux Corp Liquid crystal display device and driving method thereof
TWI339375B (en) * 2007-01-29 2011-03-21 Chimei Innolux Corp Liquid crystal display device and driving method using the same
JP5273951B2 (en) * 2007-06-12 2013-08-28 キヤノン株式会社 Liquid crystal display
JP5613365B2 (en) * 2008-05-22 2014-10-22 シャープ株式会社 Liquid crystal display

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KR100239013B1 (en) 2000-01-15
US5933202A (en) 1999-08-03
JPH0996794A (en) 1997-04-08

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